The Oscar-nominated science-fiction film revisits the ‘Alien’ universe through a high-stakes space expedition.

Thanks to the prequel's controversial changes to Alien's canon, Ridley Scott's most divisive franchise entry left some major questions unanswered.

A megacorporation's research ship returns from a 65-year mission into deep space loaded with gooey alien specimens. But—and stop me if you've heard this one before—something goes wrong. The ship ...